Regex Tester

Test regular expressions with live highlighting, capture groups, and handy presets. All client-side.

//

Building something bigger than a quick tool?

Nesqual Tech builds custom software, AI, and secure cloud platforms. Two free ways to start:

Free website security scan
Grade your site A–F in seconds.
Instant AI project estimate
Describe your idea, get a price + timeline.
Data breach cost calculator
See what a breach would cost you — and how little prevention costs.

Privacy and cookie preferences

We use strictly necessary cookies to run the site. Analytics, marketing, and AI assistant telemetry are optional and disabled until you choose. You can update consent any time in Cookie Settings.

Some infrastructure cookies, such as load balancer routing cookies, are essential for service delivery. Details: Cookie Policy